877-878-4060
Store / Deep Cycle Batteries

Lithium Batteries

Lithium Batteries

For the lowest cost per kWh cycle and highest energy density, lithium solar batteries are the best choice for renewable energy systems with storage needs.

Lithium solar batteries are more specifically called lithium iron phosphate batteries (LiFePO4 or LFP), and they offer numerous advantages over flooded and sealed lead acid batteries when used in renewable energy systems. Longer life, wider temperature range, true deep cycling, and safety are just the beginning. See below for even more reasons to choose lithium iron phosphate batteries over the alternatives, or browse our selection of 12V, 24V, and 48V lithium solar batteries for sale from KiloVault, SimpliPhi, Battle Born, and other top manufacturers.

Read more +
Product Name  Volts Amp Hours Price
  SimpliPhi Power PHI 3.8kWh Lithium Battery, 24V     SimpliPhi Power PHI 3.8kWh Lithium Battery, 24V   SimpliPhi Power PHI 3.8kWh 24V LFP SIMPHI3.8-24V SimpliPhi Power PHI 3.8kWh Lithium Battery, 24V  24 V  151 A-H $2,495.00
  SimpliPhi Power PHI 3.8kWh Lithium (LFP) Battery, 48V     SimpliPhi Power PHI 3.8kWh Lithium (LFP) Battery, 48V   SimpliPhi Power PHI 3.8kWh 48V LFP SIMPHI3.8-48V SimpliPhi Power PHI 3.8kWh Lithium (LFP) Battery, 48V  48 V  75 A-H $2,495.00
  SimpliPhi Power PHI 1.4kWh Smart Tech Lithium Battery, 24V     SimpliPhi Power PHI 1.4kWh Smart Tech Lithium Battery, 24V   SimpliPhi Power PHI-1.4-24-60 SIMPHI1400-24V SimpliPhi Power PHI 1.4kWh Smart Tech Lithium Battery, 24V  24 V  57 A-H $1,295.00
  SimpliPhi Power PHI 1.4kWh Smart Tech Lithium Battery, 12V     SimpliPhi Power PHI 1.4kWh Smart Tech Lithium Battery, 12V   SimpliPhi Power PHI-1.4-12-60 SIMPHI1400-12V SimpliPhi Power PHI 1.4kWh Smart Tech Lithium Battery, 12V  12 V  115 A-H $1,295.00
  SimpliPhi Power 3.8 PHI Battery Wall Bracket     SimpliPhi Power 3.8 PHI Battery Wall Bracket   SimpliPhi Power B-3.8-ASMB SIMPHIWALLBRKT SimpliPhi Power 3.8 PHI Battery Wall Bracket     $159.00
  SimpliPhi ExprESS 7.6kWh Mobile Power Unit     SimpliPhi ExprESS 7.6kWh Mobile Power Unit   SimpliPhi Power ExprESS 2 x 3.8 SIMEXPRESS48V SimpliPhi ExprESS 7.6kWh Mobile Power Unit     $12,195.00
  SimpliPhi AmpliPHI 3.8kWh Lithium (LFP) Battery, 48V - Sol-Ark     SimpliPhi AmpliPHI 3.8kWh Lithium (LFP) Battery, 48V - Sol-Ark   SimpliPhi Power AmpliPHI-3.8-48 SIMAMPHI3.8-48V SimpliPhi AmpliPHI 3.8kWh Lithium (LFP) Battery, 48V - Sol-Ark  48 V  75 A-H $2,995.00
  SimpliPhi AccESS 15.2kWh Energy Storage System Schneider - DC Coupled     SimpliPhi AccESS 15.2kWh Energy Storage System Schneider - DC Coupled   SimpliPhi Power 15.2 kWh AccESS - DC SIMACC4PHI3.5DC SimpliPhi AccESS 15.2kWh Energy Storage System Schneider - DC Coupled     $19,550.00
  SimpliPhi AccESS 15.2kWh Energy Storage System AC Coupled     SimpliPhi AccESS 15.2kWh Energy Storage System AC Coupled   SimpliPhi Power 15.2kWh AccESS - AC SIMACC4PHI3.5AC SimpliPhi AccESS 15.2kWh Energy Storage System AC Coupled     $17,795.00
  KiloVault HAB 7.5kWh 150Ah 48V Lithium Battery Storage System V3     KiloVault HAB 7.5kWh 150Ah 48V Lithium Battery Storage System V3   KiloVault HAB 7.5 V3 KLVHAB7.5V3 KiloVault HAB 7.5kWh 150Ah 48V Lithium Battery Storage System V3  48 V  150 A-H $5,095.00
  KiloVault 3600 HLX+ 3600Wh 300 Ah 12V Lithium Solar Battery UL     KiloVault 3600 HLX+ 3600Wh 300 Ah 12V Lithium Solar Battery UL   KiloVault 3600 HLX PLUS-UL KLV3600HLXPLUL KiloVault 3600 HLX+ 3600Wh 300 Ah 12V Lithium Solar Battery UL  12 V  300 A-H $1,945.00
  KiloVault 2400 HLX+ 2400Wh 200 Ah 12V Lithium Solar Battery UL     KiloVault 2400 HLX+ 2400Wh 200 Ah 12V Lithium Solar Battery UL   KiloVault 2400 HLX PLUS-UL KLV2400HLXPLUL KiloVault 2400 HLX+ 2400Wh 200 Ah 12V Lithium Solar Battery UL  12 V  200 A-H $1,295.00
  KiloVault 1800 CHLX 1800Wh 150Ah 12V Lithium Solar Battery- Cold Rated     KiloVault 1800 CHLX 1800Wh 150Ah 12V Lithium Solar Battery- Cold Rated   KiloVault 1800 CHLX KLV1800CHLX KiloVault 1800 CHLX 1800Wh 150Ah 12V Lithium Solar Battery- Cold Rated  12 V  150 A-H $1,245.00
  KiloVault 1200 HLX+ 1200Wh 100 Ah 12V Lithium Solar Battery     KiloVault 1200 HLX+ 1200Wh 100 Ah 12V Lithium Solar Battery   KiloVault 1200 HLX PLUS KLV1200HLXPLUS KiloVault 1200 HLX+ 1200Wh 100 Ah 12V Lithium Solar Battery  12 V  100 A-H $745.00
  KiloVault 1200 HLX 1200Wh 100 Ah 12V Lithium Solar Battery- Cold Rated     KiloVault 1200 HLX 1200Wh 100 Ah 12V Lithium Solar Battery- Cold Rated   KiloVault 1200 HLX Cold Rated KLV1200CHLX KiloVault 1200 HLX 1200Wh 100 Ah 12V Lithium Solar Battery- Cold Rated  12 V  100 A-H $995.00
  Enphase Enpower Smart Switch     Enphase Enpower Smart Switch   Enphase Energy EN-EP200G101-M240 ENPSMARTSWITCH Enphase Enpower Smart Switch     $1,395.00
  Enphase Encharge 3.36kWh LFP AC Battery     Enphase Encharge 3.36kWh LFP AC Battery   Enphase Energy EN-ENCHARGE-3-1P-NA ENPENCHARGE3 Enphase Encharge 3.36kWh LFP AC Battery     $2,595.00
  Enphase Encharge 10.5kWh LFP AC Battery     Enphase Encharge 10.5kWh LFP AC Battery   Enphase Energy EN-ENCHARGE-10-1P-NA ENPENCHARGE10 Enphase Encharge 10.5kWh LFP AC Battery     $7,795.00
  Battle Born Lithium Iron Phosphate 50Ah 24V Battery     Battle Born Lithium Iron Phosphate 50Ah 24V Battery   Battle Born Battle Born 50 Ah BBB50AH24VLFP Battle Born Lithium Iron Phosphate 50Ah 24V Battery  24 V  50 A-H $999.00
  Battle Born Lithium Iron Phosphate 50Ah 12V Battery     Battle Born Lithium Iron Phosphate 50Ah 12V Battery   Battle Born Battle Born 50 Ah BBB50AH12VLFP Battle Born Lithium Iron Phosphate 50Ah 12V Battery  12 V  50 A-H $575.00


Why Are Lithium Iron Phosphate Batteries the Best Solar Batteries?

To understand why lithium iron phosphate batteries have become the new gold standard for renewable energy systems, it’s helpful to compare them to the previous standard battery type for these applications - lead acid.

Compared to lead acid, lithium solar batteries are:

  • Deeper cycling - tolerant of 80-100% depth of discharge (DoD) compared to 50%, giving you access to more of their nameplate amp-hour or Watt-hour capacity.
  • Longer lasting - featuring a cycle life of 5000 to 10,000+ cycles compared to approximately 3000 cycles.
  • Lower in lifetime cost - with deeper cycles and more of them, the cost per kWh cycle of lithium iron phosphate batteries is unmatched.
  • Maintenance free - no watering, equalizing, or cleaning corroded terminals.
  • Tolerant of lower ambient temperatures without capacity being affected. There are even some models from KiloVault rated for sub-freezing temperatures.
  • Safe and nontoxic - with no off-gassing or thermal runaway issues, they can be installed indoors - further reducing temperature-related capacity concerns in cold weather months.
  • Lightweight - easier to ship, move, and install.
  • Equipped with built-in BMS - most lithium solar batteries have an integrated battery management system (BMS) that monitors state of charge (SoC) and protects the cells from voltage, current, and temperature hazards.

It’s also helpful to compare lithium iron phosphate batteries to an alternative type of lithium ion batteries for solar and renewable energy systems - lithium nickel manganese cobalt (NMC).

Compared to NMC, lithium iron phosphate batteries are:

  • Longer lasting - with less cell degradation when cycling deeply (80-100%).
  • Safer and thermally stable - LiFePO4 cells have a significantly higher temperature threshold for thermal runaway (and fires). Internal heat generated from charging and discharging stays safely below this threshold at all times.
  • Less expensive - NMC cells are a relatively new technology and require more heat dissipation elements in their architecture.
  • Wider operating temperature range - offers more options for installation location.


Best Applications for Lithium Solar Batteries

It should be clear by now that lithium batteries for solar energy storage are superior to lead acid batteries in every way except for the higher upfront cost (though when it comes to lifetime cost per kWh cycle, lead acid can’t touch them). Here are some specific applications where lithium solar batteries really excel and why:

  • Full-time off-grid homes benefit from the ability to do truly deep, daily cycling with a long cycle life for years and years of reliable power.
  • Part-time off-grid residences like vacation homes benefit from the lack of maintenance needed to keep the batteries working well despite infrequent use and the ability to install them inside the house to keep them protected.
  • Remote cabins and equipment benefit from their light weight, relative portability, and wide ambient temperature range.
  • Emergency backup power for grid tied solar systems benefit from the high DoD, which keeps the number of batteries needed to power critical loads at a minimum.


Lithium Solar Battery Chemistry

Under the umbrella of "lithium batteries", there are both lithium metal batteries and lithium ion batteries. Lithium metal batteries are not rechargeable, so they’re not relevant for solar power systems.

Under the umbrella of "lithium ion batteries", there are several types - each with its own set of pros, cons, and specific use cases. Today, three types are by far the most common, and they have different specialties:

  • Lithium iron phosphate (or LiFePO4 or LFP) - built for long cycle life, tolerance of deep discharging, and thermal and chemical stability for safety. LiFePO4 cells make the best batteries for solar and other renewable energy systems.
  • Lithium nickel manganese cobalt (NMC) - built for improved energy density(Watt-hours / weight) and low self-discharging. NMC cells can handle higher charging rates than LiFePO4 cells, but at the risk of thermal runaway. They are commonly used in electric vehicles and battery-powered tools.
  • Lithium cobalt oxide (or LiCoO2 or LCO) - built for extreme energy density, but relatively short-lived and also prone to thermal runaway - sometimes to dangerous levels. LCO cells’ best and most common application is in portable devices like phones and laptops.

Questions about lithium solar batteries? Give an altE solar expert a call today at 877-878-4060.

Click here for BBB Business Review ASE NESEA Member
Paypal Visa MasterCard Amex Discover
McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams